Kotlin:类型不匹配:推断的类型为String但应为String.Companion [英] Kotlin: Type mismatch: inferred type is String but String.Companion was expected

问题描述

第5行和第6行出现错误.

Error in Line 5 and 6.

科特琳:类型不匹配:推断的类型为String，但String.Companion是预期的

Kotlin: Type mismatch: inferred type is String but String.Companion was expected

class Robot (name: String,color :String) {

    var roboName= String
    var roboColor= String
    init {
        this.roboName=name
        this.roboColor=color
        }
    fun makeBed()
    {
        println("I will make your bed.")

    }

}
fun main(args: Array<String>){

     var robot1=Robot("Robot1","Black")
      println(robot1.roboName)
      println(robot1.roboColor)
      robot1.makeBed()
}

推荐答案

您分配 String 变量，该变量引用了 String.Companion 对象.这也使属性的类型为 String.Companion .您要做的是定义属性的类型:

You assigned String to a variable, which refers to the String.Companion object. This makes the property's type String.Companion, too. What you want to do instead, is defining the type of your property:

var roboName: String

此外，您可以更进一步，并在声明中加入赋值:

In addition, you can go a step further and join declaration with assignment:

var roboName: String = name
var roboColor: String = color

这篇关于Kotlin:类型不匹配:推断的类型为String但应为String.Companion的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！